"A Cinderella Story" is a modern retelling of the classic fairy tale of Cinderella. The story follows a high school girl named Sam Montgomery, who works at a diner while dreaming of a better life. She communicates with a mysterious boy online, unaware that he is actually Austin Ames, a popular student at her school. When a school dance approaches, Sam hopes to meet Austin in person. However, her stepmother and stepsisters try to prevent her from attending. With the help of her friends, Sam ultimately finds the courage to reveal her true identity and pursue her dreams, leading to a heartwarming conclusion.